CN219195796U - Mountain area silt processing apparatus - Google Patents

Abstract

The utility model relates to the technical field of hydraulic engineering, and discloses a mountain sediment treatment device which comprises a cage body, a pipe body, a seepage well, a first dam body, a reservoir and a second dam body. Through set up the cage body that inside packing has the stone in the channel upper reaches position, can reduce the velocity of flow of the interior mud flow of channel, slowed down the scouring of mud flow to the channel top layer, can filter the mud flow simultaneously, intercept the majority silt in the mud flow at the channel upper reaches, realized solidifying the effect of silt of channel upper reaches. The device has excellent sand blocking capability, can greatly reduce sediment accumulation in downstream channels, can simultaneously filter incoming water upstream of the channels and then recycle the incoming water, and improves the utilization rate of water resources; the problem that sediment at the upstream of a channel cannot be solidified in time in the prior art in a mode of blocking sand by a siltation dam is solved, and the problems that vegetation is difficult to grow in earlier stage, low in survival rate and low in sand blocking capacity in a mode of planting trees in northwest areas are avoided.

Description

Mountain area silt processing apparatus

Technical Field

The utility model belongs to the technical field of hydraulic engineering, and particularly relates to a mountain sediment treatment device.

Background

Soil erosion is a global environmental damage and soil erosion symptom. Many rivers in China, especially northern rivers, are mostly sourced from or flow through loess areas, and the vegetation coverage of the earth surface in the areas is little, heavy storm in flood season is realized, water and soil loss is serious, the sand content of the rivers is high, and the sediment accumulation condition of the rivers is serious, so that the sediment treatment work in China is extremely complex, and a plurality of natural disasters are caused.

The large-scale water and soil conservation treatment project developed in loess plateau areas for decades obviously changes the conditions of the sublevel surface of the river basin and also changes the water and sand process of the river basin system. By adopting effective approaches such as silt dam blocking, beach blocking, terraced fields and orchards reducing sand, water protecting forest, mountain sealing and forest raising reducing sand, planting grass and reducing sand, sediment accumulation is reduced.

At present, most of river basin channel sediment treatment adopts a silt dam mode to block sediment, and as the silt dam is usually arranged in the middle stream of the river basin channel and the sediment comes from the upstream of the river basin channel, the silt dam mode is adopted to block sediment, so that the problem that the sediment at the upstream of the river basin channel cannot be solidified in time exists; if the mode of forestation and sand blocking is adopted, the problems of difficult vegetation growth, low survival rate and low sand blocking capability can exist in the initial stage of forestation due to drought and little rain in northwest areas.

Disclosure of Invention

The utility model aims to provide a mountain sediment treatment device which solves the problems that sediment in the upstream of a river basin cannot be solidified in time when sediment is blocked by a silted dam in the prior art and vegetation early-stage growth is difficult, survival rate is low and sediment blocking capacity is low when sediment is blocked by tree planting in northwest areas.

In order to solve the technical problems, the specific technical scheme of the utility model is as follows:

in some embodiments of the present application, there is provided a mountain area sediment treatment device, comprising:

the cage body is arranged on the surface layer at the upstream position of the channel, and a plurality of stones are arranged in the cage body;

the pipe bodies are arranged in soil body at the upstream position of the channel at intervals, and extend towards the downstream direction of the channel;

the seepage wells are arranged between the pipe body and the cage body at intervals, and two ends of each seepage well are respectively communicated with the cage body and the pipe body;

the first dam body is arranged at one end, close to the downstream of the channel, of the cage body;

the water storage tank is arranged at one end of the pipe body close to the downstream of the channel, and the water storage tank is positioned at one side of the first dam body close to the downstream of the channel;

and the second dam body is arranged at one end of the reservoir close to the downstream of the channel.

Preferably, in the preferred embodiment of the mountain sediment treatment device, the seepage well comprises a well body and a reverse filtering structure arranged in the well body, and two ends of the well body are respectively communicated with the cage body and the pipe body.

Preferably, in the preferred embodiment of the above mountain sediment treatment device, the reverse filtering structure includes a first reverse filtering layer, a second reverse filtering layer and a third reverse filtering layer, the first reverse filtering layer is disposed on the upper portion of the well body, the third reverse filtering layer is disposed on the bottom of the well body, and the second reverse filtering layer is disposed between the first reverse filtering layer and the third reverse filtering layer.

Preferably, in the preferred embodiment of the mountain sediment treatment device, the first reverse filtering layer is composed of a plurality of fine-particle-size sand gravels, the second reverse filtering layer is composed of a plurality of medium-particle-size sand gravels, and the third reverse filtering layer is composed of a plurality of coarse-particle-size sand gravels.

Preferably, in the preferred embodiment of the mountain sediment treatment device, the first dam body is built by a plurality of cage bodies with stones inside.

Preferably, in a preferred embodiment of the above mountain sediment treatment device, the device further comprises a reverse filtering layer, and the reverse filtering layer is disposed on the first dam body.

Preferably, in a preferred embodiment of the above mountain sediment treatment device, the reverse filtering layer is a water permeable and sand impermeable geomembrane.

Preferably, in a preferred embodiment of the mountain sediment treatment device, the device further comprises a water impermeable layer, and the water impermeable layer is arranged at the bottom of the inner side of the reservoir.

Preferably, in a preferred embodiment of the above mountain sediment treatment device, the impermeable layer is impermeable geotextile.

Preferably, in a preferred embodiment of the above mountain sediment treatment device, the second dam is of a watertight structure.

Compared with the prior art, the utility model has the beneficial effects that:

(1) Through set up the cage body that inside packing has the stone in the channel upper reaches position, can reduce the velocity of flow of the interior mud flow of channel, slowed down the scouring of mud flow to the channel top layer, can filter the mud flow simultaneously, intercept the majority silt in the mud flow at the channel upper reaches, realized solidifying the effect of silt of channel upper reaches.

(2) The seepage well and the first dam body can play a secondary filtering role on the mud flow, and the sediment content in the mud flow can be further reduced.

(3) The filtered water can be stored through the water storage tank, and the part of water can be used as local irrigation water and water for the early growth of forestation vegetation; the water storage capacity of the reservoir is improved through the arranged second dam body.

(4) The device has a simple structure, is beneficial to construction operation, has excellent sand blocking capacity, can greatly reduce sediment accumulation of downstream channels, can simultaneously filter incoming water upstream of the channels and then recycle the incoming water, and improves the utilization rate of water resources; the problem that sediment at the upstream of a channel cannot be solidified in time in the prior art by adopting a sand blocking mode of a siltation dam is solved, and the problems of difficult vegetation early-stage growth, low survival rate and low sand blocking capability in a mode of tree planting in northwest areas are also avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic longitudinal sectional view of a mountain sediment treatment device according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;

FIG. 3 is a schematic diagram of an internal structure of a seepage well according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a lateral structure of a first dam according to an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of B in FIG. 1;

fig. 6 is a partial enlarged view of C in fig. 1.

In the figure:

1. a cage body; 2. stone blocks; 3. a tube body; 31. a through hole; 32. a barrier component; 4. seepage well; 41. a well body; 42. a reverse filtration structure; 421. a first reverse filtering layer; 422. a second reverse filtering layer; 423. a third reverse filtering layer; 5. a first dam; 511. a fourth reversed filter layer; 6. a reservoir; 61. a water impermeable layer; 7. and a second dam body.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The present utility model will be described in further detail with reference to the accompanying drawings for a better understanding of the objects, structures and functions of the present utility model.

Referring to fig. 1-2, in accordance with some embodiments of the present application, a mountain sediment treatment device includes:

the cage body 1 is arranged on the surface layer of the upstream position of the channel, and a plurality of stones 2 are arranged in the cage body 1;

the pipe bodies 3 are arranged in soil body at the upstream position of the channel at intervals, and the pipe bodies 3 extend towards the downstream direction of the channel;

a plurality of seepage wells 4 are arranged between the pipe body 3 and the cage body 1 at intervals, and two ends of each seepage well 4 are respectively communicated with the cage body 1 and the pipe body 3;

the first dam body 5 is arranged at one end of the cage body 1 close to the downstream of the channel;

the water storage tank 6 is arranged at one end of the pipe body 3 close to the downstream of the channel, and the water storage tank 6 is positioned at one side of the first dam body 5 close to the downstream of the channel;

and the second dam body 7 is arranged at one end of the reservoir 6 close to the downstream of the channel.

Specifically, the cage body 1 is fixedly connected to the surface layer at the upstream of the channel, the cage body 1 can be a lead wire cage, the height of the lead wire cage is 0.5m, and the width of the lead wire cage is the same as that of the surface layer at the upstream of the channel.

Specifically, the stone blocks 2 in the cage body 1 are coarse-grain stone blocks with different grain sizes; the stone 2 fills the inner space of the cage 1, and gaps exist between the stones.

In particular, the pipe body 3 may be a PE pipe having a certain drainage gradient in the arrangement direction.

Specifically, the seepage well 4 comprises a well body 41 and a reverse filtering structure 42 arranged in the well body 41, and two ends of the well body 41 are respectively communicated with the cage body 1 and the pipe body 3.

The working principle of the technical scheme is as follows: firstly, mud flow at the upstream of a channel flows through a cage body 1, energy is dissipated by buffering through a stone 2 in the cage body 1 and the mud flow is filtered, then a part of the mud flow flows into a seepage well 4, the seepage well 4 can carry out secondary filtration on the part of the mud flow, and water flow after the secondary filtration flows into a pipe body 3 and is then conveyed into a reservoir 6 under the action of gravity; the mud flow which does not flow into the seepage well 4 flows through the first dam body 5, the first dam body 5 has strong water permeability, meanwhile, the part of mud flow can be filtered, and the filtered water flows into the water reservoir 6; the second dam body 7 is of a watertight structure and can block water in the reservoir 6; when the water in the reservoir 6 is more or a larger flood occurs, the water flow may flow through the top of the second dam 7.

Through above-mentioned technical scheme, the technical effect that this application can reach lies in: the cage body 1 filled with the stones 2 is arranged at the upstream position of the channel, so that the flow speed of mud flow in the channel can be reduced, the scouring of the mud flow to the surface layer of the channel is slowed down, meanwhile, the mud flow can be filtered, most of sediment in the mud flow is intercepted at the upstream of the channel, and the effect of solidifying the sediment at the upstream of the channel is realized; the mud flow can be filtered for the second time through the seepage well 4 and the first dam body 5, so that the sediment content in the mud flow can be further reduced; the filtered water can be stored through the water storage tank 6, and the water can be used as local irrigation water and vegetation growth in the forestation earlier stage; the water storage capacity of the reservoir 6 is improved by the second dam 7. The device has a simple structure, is beneficial to construction operation, has excellent sand blocking capacity, can greatly reduce sediment accumulation of downstream channels, can simultaneously filter incoming water upstream of the channels and then recycle the incoming water, and improves the utilization rate of water resources; the problem that sediment at the upstream of a channel cannot be solidified in time in the prior art by adopting a sand blocking mode of a siltation dam is solved, and the problems of difficult vegetation early-stage growth, low survival rate and low sand blocking capability in a mode of tree planting in northwest areas are also avoided.

With continued reference to fig. 2, in a preferred embodiment of the present application, the percolating wells 4 each comprise a well body 41 and a counter-filtering structure 42 arranged inside the well body 41, and the two ends of the well body 41 are respectively communicated with the cage body 1 and the tube body 3.

Specifically, the well body 41 may be a PVC pipe with a larger rigidity, the pipe diameter of the PVC pipe is 0.5m, and the length of the PVC pipe is 1.5m; after drilling by a drilling machine, vertically inserting a PVC pipe, and communicating the bottom surface of the PVC pipe with the top surface of the pipe body 3 to form a well body 41; and then filling the reverse filtering structure 42 in the well body 41 to form the seepage well 4.

By adopting the technical scheme, the stability of the integral structure of the seepage well 4 can be ensured, and the effect of secondary filtration on the mud flow can be realized.

Referring to fig. 1, in a preferred embodiment of the present application, the seepage wells 4 on the same pipe body 3 are arranged in a direction that the seepage wells 4 are arranged more densely closer to the first dam 5.

By adopting the technical scheme, more mud flows can flow into the seepage well 4, so that the scouring of the mud flows to the first dam body 5 is effectively reduced.

Referring to fig. 3, in a preferred embodiment of the present application, the filtering structure 42 includes a first filtering layer 421, a second filtering layer 422, and a third filtering layer 423, the first filtering layer 421 is disposed on the upper portion of the well 41, the third filtering layer 423 is disposed on the bottom of the well 41, and the second filtering layer 422 is disposed between the first filtering layer 421 and the third filtering layer 423.

Specifically, the first filter layer 421 is composed of a plurality of fine-particle-size sand gravels, the second filter layer 422 is composed of a plurality of medium-particle-size sand gravels, and the third filter layer 423 is composed of a plurality of coarse-particle-size sand gravels.

By adopting the technical scheme, the mud flow in the seepage well 4 can be filtered, and piping and soil flowing at the position of the cage body 1 on the surface layer of the upstream channel can be prevented.

Referring to fig. 2, in a preferred embodiment of the present application, the junction between the bottom surface of each well 41 and the top surface of the pipe 3 is provided with a water passing structure, and the water passing structure is disposed on the top surface of the pipe 3 and is located within the range surrounded by the well 41.

Specifically, the water passing structure includes a plurality of through holes 31 provided on the top surface of the pipe body 3 and a blocking member 32 fixedly covering over the through holes 31.

In particular, the barrier component 32 may be a water permeable geotextile.

By adopting the technical scheme, the effect of draining the filtered water flow of the seepage well 4 into the pipe body 3 can be realized, and meanwhile, the situation that the reverse filtering structure 42 in the well body 41 falls into the pipe body 3 to cause the internal blockage of the pipe body 3 can be avoided.

With continued reference to fig. 1 and 4, in a preferred embodiment of the present application, the first dam 5 is built from a plurality of cages 1 with stones 2 inside.

Specifically, the length direction of the cage body 1 is the same as the length direction of the channel, the cross section of the cage body 1 in the length direction is a right trapezoid, and the length of the bottom edge of the cross section is larger than that of the top edge, namely each cage body 1 is provided with an upper horizontal plane and a lower horizontal plane, three of the four side faces are vertical planes, and one of the four side faces is an inclined plane; the vertical surfaces of the two cage bodies 1 opposite to the inclined surfaces are mutually close to form a masonry unit, namely, the section of the masonry unit in the length direction is isosceles trapezoid; the number and length of the masonry units from the lowermost layer to the uppermost layer of the first dam 5 are sequentially reduced, so that the upstream surface and the downstream surface of the first dam 5 form inclined plane structures, and the other two opposite side surfaces of the first dam 5 form continuous step structures.

By adopting the technical scheme, the first dam body 5 has strong structural stability and strong water passing capability; the top of the first dam 5 may also be over-flowed when a large flood occurs.

With continued reference to fig. 1 and 5, in a preferred embodiment of the present application, a fourth back filter layer 511 is further included, the fourth back filter layer 511 being disposed on the first dam 5.

Specifically, the fourth filter layer 511 is a water-permeable and sand-impermeable geomembrane.

In particular, the fourth back filter layer 511 may be disposed in the middle of the masonry unit, and the fourth back filter layer 511 is disposed along the cross-section of the first dam 5.

By adopting the technical scheme, the filtering effect of the first dam body 5 on the mud flow can be further improved, and meanwhile, the geomembrane can be protected to a certain extent, so that the service life of the geomembrane is prolonged.

With continued reference to fig. 1 and 6, in a preferred embodiment of the present application, the water-impermeable layer 61 is further included, and the water-impermeable layer 61 is provided at the bottom of the inner side of the water reservoir 6.

Specifically, impermeable layer 61 is an impermeable geotextile.

By adopting the technical scheme, the underwater seepage inside the reservoir 6 can be effectively prevented, and the water storage capacity of the reservoir 6 is further improved.

Referring to fig. 1, in a preferred embodiment of the present application, the second dam 7 is a watertight structure.

Specifically, the second dam body 7 is formed by tamping clay, the top surface of the second dam body 7 has a certain drainage gradient, and the top surface of the second dam body is arranged in a downward inclined way towards the downstream direction of the channel; the longitudinal section of the second dam body 7 is of an isosceles trapezoid structure, and the bottom edge length of the second dam body is larger than the top edge length, so that the upstream surface and the downstream surface of the second dam body 7 form inclined plane structures.

By adopting the technical scheme, the second dam body 7 can be ensured to have strong structural stability and waterproof property, and can play a good role in blocking water in the reservoir 6; meanwhile, when the water quantity in the reservoir 6 is large or large flood occurs, the overflow can be performed through the top surface of the second dam body 7.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A mountain sediment treatment device, comprising:

the cage body is arranged on the surface layer at the upstream position of the channel, and a plurality of stones are arranged in the cage body;

the pipe bodies are arranged in soil body at the upstream position of the channel at intervals, and extend towards the downstream direction of the channel;

the seepage wells are arranged between the pipe body and the cage body at intervals, and two ends of each seepage well are respectively communicated with the cage body and the pipe body;

the first dam body is arranged at one end, close to the downstream of the channel, of the cage body;

the water storage tank is arranged at one end of the pipe body close to the downstream of the channel, and the water storage tank is positioned at one side of the first dam body close to the downstream of the channel;

and the second dam body is arranged at one end of the reservoir close to the downstream of the channel.

2. The mountain sediment treatment device according to claim 1, wherein the seepage wells comprise well bodies and reverse filtering structures arranged in the well bodies, and two ends of the well bodies are respectively communicated with the cage bodies and the pipe bodies.

3. The mountain sediment treatment device as claimed in claim 2, wherein the reverse filtering structure comprises a first reverse filtering layer, a second reverse filtering layer and a third reverse filtering layer, the first reverse filtering layer is arranged on the upper portion of the well body, the third reverse filtering layer is arranged on the bottom of the well body, and the second reverse filtering layer is arranged between the first reverse filtering layer and the third reverse filtering layer.

4. A mountain sediment treatment device as claimed in claim 3, wherein the first reverse filter layer is composed of a plurality of fine particle size sand gravel, the second reverse filter layer is composed of a plurality of medium particle size sand gravel, and the third reverse filter layer is composed of a plurality of coarse particle size sand gravel.

5. The mountain sediment treatment device of claim 1, wherein the first dam is built up of a plurality of cages with stones inside.

6. The apparatus of claim 5, further comprising a fourth filter layer disposed on the first dam.

7. The mountain sediment treatment device of claim 6, wherein the reverse filter layer is a water permeable and sediment impermeable geomembrane.

8. The mountain sediment treatment device as claimed in claim 1, further comprising a water impermeable layer, wherein the water impermeable layer is provided at the bottom of the inner side of the reservoir.

9. The mountain sediment treatment device of claim 8, wherein the impermeable layer is impermeable geotextile.

10. The mountain sediment treatment device of claim 1, wherein the second dam is of watertight construction.

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